LOCATION.--Lat 43°05'10", long 93°42'51"
referenced to North American Datum of 1983, in SW 1/4 NW 1/4 SW 1/4
sec.32, T.96 N., R.24 W., Hancock County, IA, Hydrologic Unit
07080207, 0.2 mi north of intersection of Nash Avenue and 210th
Street, and 1.0 mi south of Duncan. (map)
GROUNDWATER RECORDS
WELL CHARACTERISTICS.--Depth 23.9 ft. Upper casing diameter 2 in;
top of first opening 10.5 ft, bottom of last opening 18.0 ft. Drilled
observation well, cased to 23.5 ft. All depths below land-surface
datum.
DATUM.--Land-surface datum is 1,253.12 ft above North American
Vertical Datum of 1988. Measuring point: top of casing, 1.35 ft above
land-surface datum, April 23, 2008, to present. Land-surface datum
from levels.
PERIOD OF RECORD.--Water-level measurements, water years
2008-2015.
PERIOD OF DAILY RECORD.--Water-level records from July 2008 to
October 2014.
GAGE.--Water-level recorder.
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